Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 12, Issue 8, Pages -Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ee01078e
Keywords
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Funding
- European Regional Development Fund [16/A/013]
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The contact electrification of polymer interfaces provides an energy harvesting function to triboelectric (nano)generators (TEG). The electron transfer between contacted-separated surfaces has been considered as the main electrification mechanism for polymers in TEG. The electron transfer mechanism widely proposed in literature requires a contact between chemically different polymer materials, as well as subsequent increase of the specific contact area, which is commonly accomplished via nanostructuring. Herein, we showed that contact electrification could be controlled by intramolecular forces in the polymer bulk and adhesive forces at the contact interface, and the chemical contact between different polymers was not needed for contact electrification. The results also confirm the breaking of the covalent bond as a mechanism of the contact electrification of polymer insulators.
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